Exelixis, INC.

• Layoff notice effective OCT 27, 2025 · 71 employees · filed AUG 26, 2025 · Layoff Permanent — recorded; a layoff does not change the status
• Layoff notice effective AUG 29, 2025 · 74 employees · filed SEP 2, 2025 · Layoff Permanent — recorded; a layoff does not change the status
• Layoff notice effective MAR 8, 2024 · 143 employees · filed FEB 27, 2024 · Layoff Permanent — recorded; a layoff does not change the status

Notices filed with the state under the federal WARN Act, as the state publishes them, collected by the WARN Act notices feed (CC BY 4.0). A notice records what the employer told the state; it is not by itself proof that the plant closed.

What they make

• cancer medicines
• therapies
• metastatic colorectal cancer
• development
• clinical trials

NAMED ON THE COMPANY’S OWN WEBSITE, READ JUL 29, 2026

Products

Open positions

Openings read from Exelixis, INC.’s own job board on Workday, last checked OCT 21, 2026. FactoryRegistry does not host applications — each title opens the posting where the company published it.

• Corporate Counsel, Contracts
  Alameda, CA · posted OCT 20, 2026
• Data & AI Platform Engineer II
  Alameda, CA · posted OCT 20, 2026
• Senior Staff Engineer - Cloud Platform, Enterprise Integration & Application Architect
  Alameda, CA · posted OCT 19, 2026
• Senior Medical Director, Clinical Development
  Alameda, CA; Remote · posted OCT 19, 2026
• Clinical Science Director
  Alameda, CA; Remote · posted OCT 19, 2026
• Associate Clinical Supply Distribution Director
  Alameda, CA; Alameda HQ · posted OCT 16, 2026
• Senior Scientist I, Bioassay
  Alameda, CA · posted OCT 16, 2026
• Associate Clinical Supply Chain Director
  Alameda, CA · posted OCT 15, 2026
• Associate Principal Engineer - AI Cloud Platform
  Alameda, CA · posted OCT 14, 2026
• Associate Director, GU Key Customer Strategy Marketing
  Alameda, CA · posted OCT 14, 2026

• GU Field Based Marketing Director - Key Customer Team (Remote North East - NY, MA & CT)
  Remote · posted OCT 19, 2026
• Senior Oncology Account Manager - (Birmingham, AL | Remote)
  Remote · posted OCT 19, 2026
• Executive Medical Director, Pharmacovigilance Risk Management (PVRM)
  Remote · posted OCT 19, 2026
• Clinical Operations Compliance Director (Biotechnology Oncology)
  Remote · posted OCT 15, 2026
• Associate Clinical Operations Compliance Director (Biotechnology Oncology)
  Remote · posted OCT 15, 2026
• Associate Clinical Operations Compliance Director (Biotechnology Oncology)
  Remote · posted OCT 15, 2026
• Drug Safety Associate III
  Remote · posted OCT 9, 2026
• Clinical Science Director (Biotech Oncology)
  Remote · posted OCT 1, 2026
• Clinical Development Medical Director (Biotechnology / Oncology)
  Remote · posted SEP 22, 2026
• Senior Director, Clinical Operations Compliance Management (GCP/Biotechnology/Oncology)
  Remote · posted SEP 22, 2026

43 more on the company’s board

Where it is

Other plants nearby

Every listed plant in Alameda County

Also at this address

No other federal record shares this street address.

Where this record comes from

4 sources hold this plant, and 11 fields on this page come from them. Each line is one agency’s own record of it: the identifier it is filed under, whether that record shows the plant operating or only that it exists, and when the register first and last saw it there.

• The company’s own websiteOPERATING
  first seen JUL 2026 · last seen OCT 2026
• SAM.gov entity registrationOPERATING
  first seen OCT 2025 · last seen JUN 2026
• State WARN plant-closing and layoff noticesEXISTENCE
  first seen OCT 2025 · last seen OCT 2025
• DOL Form 5500 retirement plan filingsOPERATING
  Record 043257395|CA|94502|1851 harbor bay pkwy · first seen DEC 2024 · last seen DEC 2024

IN ALAMEDA COUNTY201 other plants share this one’s industry (Pharmaceutical and Medicine Manufacturing, NAICS 3254); 16 of them have a size band on record.

What each source says

Every field below, as each source filed it. The value this page shows is marked; where the sources disagree, the field says so. Status is computed from independent sources; nothing here is self-reported unless marked Claimed.

Name

SAM.gov: EXELIXIS, INC. · OCT 2025

Street address

SAM.gov: 1851 HARBOR BAY PKWY · OCT 2025

City

SAM.gov: ALAMEDA · OCT 2025

State

SAM.gov: CA · OCT 2025

Coordinates

Census geocoder: 37.725545884555,-122.243933636464 · JUL 2026

Employees (band)

DOL: 500+ · DEC 2024

Website

Company website: www.exelixis.com · JUL 2026 · ON THIS PAGE

SAM.gov: www.exelixis.com · OCT 2025 · ON THIS PAGE

CAGE code

SAM.gov: 6WGQ0 · OCT 2025

Retirement plan filing (Form 5500)

DOL: 1,148 active participants, plan year ending 2024-12-31, 2 plan(s) · DEC 2024

SAM registration expires

SAM.gov: 2026-10-15 · OCT 2025

State business registrationSOURCES DISAGREE

CO SOS: EXELIXIS U.S., LLC, registered with the Colorado Secretary of State; Limited liability company formed in Delaware; registered 2017-12-28; active, annual report filed 2025-11-26 · NOV 2025

DC Corporations: EXELIXIS U.S., LLC, registered with the District of Columbia Corporations Division; Limited liability company; registered 2018-06-14; active, annual report filed 2025-01-23 · JAN 2025

Sunbiz: EXELIXIS U.S., LLC, registered with the Florida Department of State, Division of Corporations; Limited liability company formed in Delaware; registered 2017-12-26; active, annual report filed 2026-04-07 · APR 2026

IA SOS: EXELIXIS U.S., LLC, registered with the Iowa Secretary of State; Limited liability company; registered 2022-08-11; active · AUG 2022

OR SOS: EXELIXIS U.S., LLC, registered with the Oregon Secretary of State, Corporation Division; Limited liability company formed in Delaware; registered 2017-12-26; active · DEC 2017

TX Comptroller: EXELIXIS U.S., LLC, registered with the Texas Comptroller of Public Accounts; Limited liability company; registered 2017-12-27; active · DEC 2017

VA SCC: Exelixis, Inc., registered with the Virginia State Corporation Commission; Corporation formed in Delaware; registered 2007-07-16; active · JUL 2007